Flow rate measurement system

A flow rate measurement system that measures, by using a flow rate measurement device, a flow rate of cleaning gas supplied from a gas supply device in a container storage facility comprising:

• a storage rack including a plurality of supporting portions;
• a transport device that transports a container to a target supporting portion selected from the plurality of supporting portions;
• and
• the gas supply device that supplies the cleaning gas to the container supported by each of the plurality of supporting portions, wherein:
• the transport device and the flow rate measurement device are connected via a power line, and are connected communicatively by wire or wireless, and
• the flow rate measurement device measures the flow rate of the cleaning gas in a state in which the transport device has transported the flow rate measurement device in place of the container and the flow rate measurement device is placed on the target supporting portion.